Furnace.



No. 7l5952. Patented Dec. I6, |902.

F. W. BLAKE.

l FunNAcE.

Applignaton filed Apr. 8, 1902.)

(No Model.)

, UNITED STATES PATENT OFFICE.

FREDERICK W. BLAKE, OFYMANTUA STATION, OHIO, ASSIGNOR OF ONE- HALF` T O A. W.l RUSSELL, OF MANTUA STATION, OHIO.

FU RNACE.

SPECIFICATION forming part of Letters Patent No. 715,952, dated December 16, 1902.

Application filed April 8, 1902. Serial No. 101,927. I (No model.)

.To @ZZ whom, it may concern:

Be it known that I, FREDERICK W. BLAKE, a citizen of the United States, residing at Mantua Station, in the county of Portage and State of Ohio, have invented certain new and useful Improvements in Furnaces; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification. 1

This invention relates to furnaces, and particularly to air-heating furnaces.

The object of the invention is to provide anl improved construction in which the cold air is more thoroughly and evenly heated than heretofore by passing the same twice around the fire-pot and radiating-drum.

A further object is to thoroughly mix and uniformly heat the air by a number of baffle or deflector plates, which obstruct and delay its passage around the combustion-chambers.

With these and other objects in view the invention is hereinafter described and is illustrated in the accompanying drawings, in which- Figure lis a vertical cross-section of the furnace. Fig. 2 is a horizontal section thereof.

Referring specifically tothe drawings, 6 indicates a corrugated cast-iron ire-potg'r7, the ash-pit;l 8, a radiating-drum, and 9 a hot air or gas dome closing the`top of the combustion-chamber. The heater thus formed is completely inclosed in a brick-wall jacket l0, the walls of said jacket consisting of two single walls with a dead air space between. Suitable openings are made in the front wall for the ash-pit and coal-doors, and a'ue-pipe ll extends from the rear of the drum through the top Wall to a chimney. The dome has a small pipe lla'connecting to the flue for the escape of accumulating gases, whereby shooting, or gas explosion, is avoided. The heater is spaced from the floor of the cellar or furnace-pit, producing a space or passage 12 across between the front and the rear walls of thejacket and divides the same into two chambers l5 and 16. A cold-air pipe 17 enters the chamber l5 near the top thereof, and hot-air service-pipes 18 leave the ,chamber 16 at or near the top thereof. The partition 14 is preferably placed to one side of the middle line, so that the chambers produced are different sizes, the chamber receiving the cold air-being smaller. The partition effectually prevents communication betweenthe chambers, exceptlunder the ash-pit, by Way of the space or passagelZ. In each chamber a number of alternate bafles or deectors 19, which maybe inclined or horizontal, are introduced, the interposition of which causes the air in its passage through the chambers to become thoroughly mixed and heated.

In'operatiou cold air drawn in at the top of the chamber l5 is caused to pass around the baffles therein, being thus brought in contact with one side of the heater, which mixes and uniformly heats the air to a certain extent. Thence it passes under the ash-pit and over the Vapor-pan, producing effective vaporization, and thence'up through the chamber lr6 around the bafflerplates to the servicepipes. It will be seen that air is brought in contact with all parts of the heater, whereby a maximum of radiation and heating effect is obtained.

The parts are inexpensive anda simple and economical furnace is produced, and by the operation of the baffle-plates aforesaid unequal heating or sliding of the air, leading to unequal heating from different servicepipes, is prevented. What I claim is l. The combination with inclosing walls, and a fire-pot and radiating-drum therein spaced from the iioor to produce an air-passage thereunder, of a vertical partition' across between the walls spanning the drum to ex-A pose the same on both sides thereof, and forming heatingchambers on both sides of the partition communicating through the air-passage, a eold-air-suppiy pipe at the top of one of the chambers, and hot-air outlet from the other.

2. The combination with a. stove having an air-passage thereunder, of walls inclosxingr the same and spaced therefrom, a cross-partition between the walls which spans the stove and forms two air-chambers to each of which the stove is exposed and which communicate through the air-passage, heme-plates in the lo chambers, and inlet and service pipes at the top of the respective chambers.

In testimony whereof I ax my signature in presence of two Witnesses.

FREDERICK W. BLAKE. Witnesses:

C. E. HERST, J. I. COURT. 

